18 kW DC-DC power shelf for Open Compute Project (OCP) applications

18 kW DC-DC power shelf for Open Compute Project (OCP) applications

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By Nick Flaherty

The SPSPFF3 System is a complete computer rack power solution and includes up to six 3kW power modules, shelf, controller and Power Distribution Unit (PDU) as well as the cable harness. It supports secure remote monitoring and is fully compliant to EMC and safety standards and carries the CE mark. The SPSPFF3 components have a nominal -48 V input voltage, which covers a range from -40 V to -72 V, and will convert into a fully regulated and isolated single output voltage of 12.5 V.

The converter can operate in a fan cooled environment and uses digital controls for fan speed regulation with dynamic response to load / input changes and low output voltage noise. In addition, there is a 6 slot shelf, PDU and shelf controller for full remote control and monitoring of the system via SNMPv1/2c/3 through a 10/100 MB base Ethernet port.

Shelves are available for OCP V2 bus-bar style connection and the PDU fits into the OCP V2 rack opening. Cables from the PDU to the shelf are available as well, making this a one-stop-shop V2 power solution. The converters are 3 kW each, hot swap capable and fully protected against over-current, -voltage, -temperature and reverse polarity. Features include active analogue current share for parallel and redundant operation, as well as secure remote monitoring with the SNMPv3 protocol via the Network Attached Controller hosted in the shelf. These innovations make the PFF Systems ideal for a broad range of applications in DC-DC markets that require high power density and telecom/central office voltage compliance.

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